Shaving compositions containing particulate additives

ABSTRACT

Shaving compositions for use in the personal shaving process with a razor blade assembly include insoluble solid particulate additives. The shaving compositions may include one or more of the following: wetting agents, cleansing agents, lather producing compositions, emollients and mixtures thereof; and further includes at least one solid, insoluble particulate additive in a well dispersed suspension throughout said shaving composition. The solid additives are present in an effective amount to produce physical microscopic support for the blade of a razor blade assembly during the personal shaving process. By providing micro-support of the razor blade parallel to skin surface and above surface irregularities, the solid particulate additives provide improved razor blade glide, thereby preventing nicks and cuts, and also enhancing exfoliation of dead skin and removal of grease and oils, as well as improving hair extraction prior to cutting, thereby improving overall smoothness of the post-shaven skin. The shaving compositions may be in the form of a gel, cream, solid, liquid or aerosol before and/or after application to the skin.

RELATED PATENT APPLICATIONS

This invention is a continuation in part of U.S. patent application Ser.No. 08/634,602, filed Apr. 18, 1996, and now U.S. Pat. No. 5,587,156issued Dec. 24, 1996.

I. BACKGROUND OF THE INVENTION

a. Field of The Invention

The present invention relates to all shaving compositions which includeparticulate additives, and more particularly to all shavingcompositions, whether in the form of a solid, gel, cream, liquid, oraerosol, which include solid, insoluble particulate additives.

b. Description of the Related Art

Solid particulate additives have been employed in a host of cleansingcompositions for use in the removal of foreign materials, as well asdead skin cells from the skin surface. These well known cleansingcompositions are described, for example, in U.S. Pat. No. 4,155,870, inwhich glass bubbles are incorporated into the cleansing medium, and U.S.Pat. No. 4,157,387 which describes a cleansing composition incorporatinga water soluble polymer as an abrasive for use in cleaning the skin andfor removing dead skin cells from the skin surface. The art ofincorporation of fillers and abrasive additives in soaps is well knownand described in prior art such as Kanfer, et. al., in U.S. Pat. No.4,786, 432. Other examples of soap compositions containing particulateadditives are disclosed in U.S. Pat. Nos. 4,187,288 by Cordon, et. al.,4,735,746 by Speranza, et. al, 4,051,056 by Hartman. In each of thesereferences abrasive impregnated soap provide excellent scrubbing action,thereby producing not only a cleaning action, but also superiorpost-cleansing skin smoothness.

Conventional shaving compositions, whether in solid, gel, cream, liquid,or aerosol form (before and/or after application to the skin), generallyinclude lather producing chemical compositions and/or foam inducingagents, however, they are not required to contain such foam inducingagents. Typical shaving compositions are described in U.S. Pat. Nos.3,852,417 by McLaughlin, 4,145,411 by Mende, 5,034,220 by Helioff, et.al., 4,999,183 by Mackles, et. al., and 5,326,556 by Barnet, et al.These shaving compositions all contain wetting agents or surfactants,and foaming agents. These prior art shaving compositions typicallycontain five to fifteen percent by weight stearate soap, such as sodiumstearate, potassium stearate, or mixtures thereof with weight ratios inthe range of about 2:1 to about 8:1. They also include emollientadditives such as coconut fatty acids, castor oil, coconut oil, or othercomplex oils. Lubrication is achieved in shaving compositions byemploying a combination of one or more of the aforementioned oils andfatty acid monoethanolamide or diethanolamide. Such shaving compositionsmay also include wetting agents or surfactants to enhance adherence ofthe media to the to-be-shaved hair and surrounding skin. Furthermore,when wetting agents are included they also provide some degree of andlimited physical support for the shaving blade, thereby improving bladeglide and reducing skin irritation. Furthermore, some of thecompositions described in prior art include claims for additives such asinorganic salts which enhance lubrication; however, these additives,such as those described in U.S. Pat. No. 3,852,417 by McLaughlin, arewater soluble additives such as polysiloxanes in amounts of up to 5percent by weight, or water soluble polymeric materials of up to 5percent by weight, such as polyvinylpyrrolidone or polyethylene oxide.

It is therefore seen that current shaving compositions, whether providedin the form of a solid, gel, cream, liquid or aerosol (before and/orafter application to the skin), generally include, but do not require,materials which provide three basic characteristics which are associatedwith hair removal by the process of shaving with a razor blade assembly:(a) Wetting: using surface acting agents, otherwise known as wettingagents or surfactants, which allow the shaving composition to betteradhere to the surface of the skin and hair, thereby producing improvedsoftening of the hair, removal of grease and oils from the skin andhair, and improved removal of the shaving composition during the rinsingphase, after shaving is completed; (b) Lubrication: with or withoutgelling aids and/or post-foaming agents, such as described in U.S. Pat.No. 3,541,581 by Monson, are employed to create a thin, but easilypenetrable boundary layer between the shaving blade and the skin,thereby serving to cushion the shaving blade from the skin in order toavoid nicks and cuts, and also serving to reduce skin irritation, aswell as to support the hairs to cause them to assume an erect position,thereby setting the hair up for the shaving razor blade assembly toprovide improved hair removal; and (c) Softening: with emollients andskin conditioners are incorporated in shaving media to open skin pores,soften the hairs, and soften the exposed skin. Typical emollients aredescribed in U.S. Pat. Nos. 4,994,265 or 4,917,884.

In the same manner, it is well known in the prior art that manycleansing soaps include cleansing agents in order to remove foreignmaterials and dead skin from the surface of the skin, including hands,face, and legs. Such cleansing agents have been reported in prior artU.S. Pat. Nos. 4,155,870; 5,298,181; and 4,051,056. These cleansingagents produce added scrubbing action in conjunction with a soap toprovide effective removal of stubborn stains, foreign materials,irregular skin surfaces, and dead skin cells, leaving the post-cleansedskin surface ultra-smooth. For example, facial cleanser scrubs have beenin use for many years to smooth rough features and remove grease, oils,and dead skin cells. However, this application has never been appliedtoward shaving compositions, whether applied to the face, or the legs orunderarms.

A U.S. safety razor manufacturer, recently introduced a new type ofwoman's razor blade assembly called the Schick Silk Effects™, wherebythe blade or assembly of multiple blades is enclosed in a fine wirewrapping. The support wire provides blade support above the skin surfaceto provide a nick free shave. However, due to relatively large diameterof the support wire employed, the shaving blade does not produce asclose a shave as a razor blade assembly that does not include a wire.

It is therefore seen that there still remains a need for a shavingmedium composition which provides a nick free shave, yet which providesa close shave such as one would get with a standard razor bladeassembly. It is further seen that no prior art shaving compositions areknown which include solid, insoluble particles as a part of theirformulation. As a matter of fact, the thought of including solid,insoluble particles in shaving compositions might appear to beintuitively offensive and counter-intuitive for a material which isapplied to the face.

SUMMARY OF THE INVENTION

It is therefore an object of the present invention to provide shavingcompositions for use with conventional razor blade assemblies whichminimize nicks and cuts, and which yet provide close shaves.

It is another object of the present invention to provide a shavingcomposition in which insoluble particulate additives, such as filler orabrasive materials, are incorporated to reduce undesired nicks and cuts,and improve post-shave skin smoothness.

It is another object of the present invention to provide an improvedshaving composition with improved cleansing characteristics.

It is a further object of the present invention to provide an improvedshaving composition which reduces nicks and cuts, and which improvespost-shave smoothness regardless of the form of the shaving compositionbefore and/or after application to the skin, that is solid, gel, cream,liquid or aerosol.

These and other objects of the invention are achieved by the shavingcompositions of the present invention which include an effective amountof insoluble particulate additives, such as inorganic or organic solidsor fillers, which additives provide physical, microscopic blade support.

As used herein the term "razor blade assembly" means either a straightrazor or a safety razor with one or more shaving edge. As used hereinthe term "shaving compositions" means compositions utilized specificallyas a lubricant and blade support for the shaving process using a razorblade assembly, and which may include as required one or more of thefollowing: wetting agents, surfactants, foaming agents or latherproducing compositions, gelling aids and post-foaming agents,emollients, cleansing agents, and/or equivalents thereof, and regardlessof the constitution of the shaving composition before and/or afterapplication to the skin, that is solid, gel, cream, liquid or aerosol.As used herein the term "particulate additives" means insolubleinorganic or organic solids or filler particles, and equivalentsthereof, having a size in the range of from about 0.1 μm to about 1,000μm, with particles in the range of about 10 μm to 500 μm beingpractical, and 50 μm to 200 μm being preferred, although other sizes maybe utilized, as discussed below. A single particulate additive orcombinations of particulate additives may be used in the shavingcompositions of the present invention. As used herein "an effectiveamount" of insoluble particulate additives is an amount, by weight,which provides physical support for the blade of a razor blade assemblyduring the personal shaving process. In most instances, from about 0.1%to about 20%, by weight will be adequate, while from about 1% to about10%, by weight is normally preferred. However, it is to be understoodthat in some instance an equivalent "effective amount" of insolubleparticulate additives less than 0.1% and/or greater than 20%, by weight,and in thick pastes, solids, and gels even as high as 90% or greater maybe used in the practice of the present invention. When used in shavingcompositions the insoluble particulate solid additives are present as awell dispersed suspension throughout the composition. Insolubleparticulate additives which have particular utility in the practice ofthe present invention include abrasives, and organic solids such aspolymeric beads or cylindrical shaped polymeric particles, or syntheticorganic fibers, such as the cleansers described in Speranza, et al. U.S.Pat. No. 4,735,746.

The use of such particulate additives in the shaving compositions of thepresent invention provide microscopic support for the razor bladeassembly during shaving, thereby providing a close but nick free shavewith a standard razor blade assembly. In addition to providingmicroscopic support for the blade, these solid particulate additivesalso work in conjunction with the razor blade assembly and the user'sscrubbing movements during shaving composition application to removedirt, oils, stains, and dead skin cells from the skin's surface, therebyproducing post-shave skin surfaces with improved smoothness andcleanliness as compared to those provided by current, commerciallyavailable shaving compositions. Furthermore, the particulate additivesolid particles in the shaving compositions of the present inventionimprove the hair extraction process performed by the shaving bladeassembly prior to the blade cutting the hair by: (1) depressing thesurface of the skin during shaving so that the post-shave position ofthe cut hair resides below the surface of the skin, and (2) extractingthe hair away from its follicle just prior to being cut, therebyimproving the overall smoothness of the post-process skin.

These and other objects of the present invention will become apparent tothose skilled in the art from the following detailed description,showing the contemplated novel compositions as herein described, andmore particularly defined by the appended claims, it being understoodthat changes in the precise embodiments to the herein disclosedinvention are meant to be included as coming within the scope of theclaims, except insofar as they may be precluded by the prior art.

DETAILED DESCRIPTION OF THE INVENTION

The present invention provides new and improved shaving compositionswhich include insoluble particulate additives. The particulate additivesincorporated into the shaving compositions of the present inventionserve multiple purposes and provide several benefits. First, theparticulate additives provide microscopic support to the razor bladeassembly and superior blade glide by providing physical, parallelsupport of the blade edge as it moves over the skin surface, andespecially over skin irregularities. This micro-glide support systempromotes nick-free shaves, with ultra-smooth post-shave skin smoothness.Second, the solid particles act in conjunction with the blade assemblyto extract each hair away from its follicle, just prior to being cut. Asa result the post-shave position of each cut hair resides below thesurface of the skin, thereby improving the overall smoothness of thepost-process skin. Third, the particulate additives cooperate with anycleansing agents which may be incorporated in the shaving compositionsto produce added scrubbing action in conjunction with a soap constituentto provide effective removal of dirt, oils, stains, and dead skin cells,foreign materials, irregular skin surfaces, and dead skin cells, therebyleaving the post-cleansed skin surface extremely smooth.

The present invention is not limited to any single shaving composition,but rather to the concept of the inclusion of suitable particulateadditives to any shaving composition, regardless of its form before orafter it is applied, that is solid, gel, cream, liquid or aerosol.

EXAMPLE 1

One preferred exemplary shaving composition of the present invention isbased on that described in U.S. Pat. No. 3,852,417 by McLaughlin, butincludes added water insoluble organic additives is as follows:

    ______________________________________                                        Material             % by Weight                                              ______________________________________                                        Potassium stearate   5.20                                                     Sodium stearate      1.11                                                     Lauric acid diethanolamide                                                                         1.60                                                     Mineral oil (Saybolt viscosity of                                                                  15.00                                                    75-100 seconds at 100° F.)                                             Stearic Acid         0.14                                                     Coconut fatty acid   0.68                                                     Glycerine            3.20                                                     Polyvinylpyrrolidone (Grade K-30)                                                                  0.12                                                     Perfume              0.37                                                     Water                57.58                                                    Dichlorodifluoromethane                                                                            10.00                                                    Particulate additive - Nylon fibers                                                                5.00                                                     Total                100.00%                                                  ______________________________________                                    

The nylon fibers in this example are preferably cylindrical particlesnominally about 50 μm in diameter and a nominal length of about 200 μm,although other sizes may be utilized as discussed below. The shavingcomposition in this example will be prepared by mixing 6.12 parts ofstearic acid, 1.60 parts of lauric acid diethanolamide, 15 parts mineraloil and 0.68 parts of coconut fatty acids at a temperature in the rangeof about 167°-176° F., followed with agitation and admixture of 0.12parts polyvinylpyrrolidone, 3.2 parts of glycerine, 0.9 parts ofpotassium hydroxide, and 0.2 parts of sodium hydroxide in 57.58 parts ofwater at a constant temperature in the range of about 167°-176° F. Theresulting mixture will then be cooled to a temperature in the range ofabout 115°-125° F. with agitation. The perfume and particulate additivenylon fibers will then be added to the mixture, and the temperaturecooled to the range of about between about 84° to 88° F. This finalliquid mixture will then be placed in an appropriate dispenser underpressure with the addition of propellant for use as an aerosol cream.

When dispensed and applied to the face and used for shaving, thiscomposition will provide a shaving experience in which the particulateadditives in the shaving composition will provide microscopic support tothe razor blade assembly and superior blade glide by providing physical,parallel support of the blade edge as it moves over the skin surface,and especially over skin irregularities, thereby will promote nick-freeshaves, with ultra-smooth post-shave skin smoothness. The post-shaveposition of each cut hair will be found to reside below the surface ofthe skin, thereby improving the overall smoothness of the post-processskin. In addition, the particulate additives will cooperate with thecleansing agents in the shaving compositions to produce added scrubbingaction to provide effective removal of dirt, oils, stains, and dead skincells, foreign materials, irregular skin surfaces, and dead skin cells,and will thereby leave the post-cleansed skin surface extremely smooth.

When the formulation of EXAMPLE 1 is modified, first using 10% and thenusing 20%, by weight, insoluble nylon fibers, while in each instanceproportionally decreasing amounts of water and/or Mineral oil, theresulting shaving compositions will provide a shaving experience whichis equivalent to the original formula, suggesting that even greateramounts of insoluble particles can be used in the practice of thepresent invention.

EXAMPLE 2

Another exemplary composition is based on that described in McLaughlinU.S. Pat. No. 3,852,417, and includes abrasive inorganic additives, asfollows:

    ______________________________________                                        Material             % by Weight                                              ______________________________________                                        Potassium stearate   5.20                                                     Sodium stearate      1.11                                                     Lauric acid diethanolamide                                                                         1.60                                                     Mineral oil (Saybolt viscosity of                                                                  17.00                                                    75-100 seconds at 100° F.)                                             Stearic Acid         0.14                                                     Coconut fatty acid   0.68                                                     Glycerine            3.20                                                     Polyvinylpyrrolidone (Grade K-30)                                                                  0.12                                                     Perfume              0.37                                                     Water                57.58                                                    Dichlorodifluoromethane                                                                            10.00                                                    Particulate additive - silica sand                                                                 3.00                                                     Total                100.00%                                                  ______________________________________                                    

The silica sand employed in this example is nominally about 75 μm insize, although other sizes may be utilized as discussed below.

This shaving composition will be prepared by mixing 6.12 parts ofstearic acid, 1.60 parts of lauric acid diethanolamide, 17 parts mineraloil and 0.68 parts of coconut fatty acids at a temperature in the rangeof about 167°-176° F., followed with agitation and admixture of 0.12parts polyvinylpyrrolidone, 3.2 parts of glycerine, 0.9 parts ofpotassium hydroxide, and 0.2 parts of sodium hydroxide in 57.58 parts ofwater at a constant temperature in the range of about 167°-176° F. Thesubsequent mixture will then be cooled to a temperature of 115°-125° F.with agitation. The perfume and silica sand will be added to themixture, and the temperature cooled to the range of about between about84° to 88° F. This final liquid mixture will then be placed in anappropriate dispenser under pressure with the addition of propellant foruse as an aerosol cream.

When the aerosol medium will be disbursed from its container onto theskin surface, either directly or upon admixture of the medium in asuitable container or in the hand of a user, it will quickly foam, andwhen applied to the face it will wet the surface of the skin, softeningthe skin surface and the hair to be shaved, forcing the hair strands tostand erect normal to the surface of the skin, and opening skin pores.When a standard blade assembly will be subsequently employed over thesurface of the skin, it will cut each strand of hair in its path, usingthe shaving medium as lubricant with each swath. Post-shave skinsurfaces will be nick free and ultra-smooth.

Insoluble particulate additives which are suitable for incorporationinto standard shaving media compositions in accordance with the presentinvention include, but are not limited to thermoplastic andthermosetting resin polymers and inorganic materials such as thefollowing:

    ______________________________________                                        a) polyamides (e.g. nylon)                                                                     b) polytetrafluoroethylene (Teflon)                          c) acetal resins (Delrin)                                                                      d) polypropylene                                             e) polyethlenes  f) polyurethane                                              g) silica        h) pumice                                                    i) wood dust     j) quartz                                                    k) titanium dioxide                                                                            l) calcium carbonate                                         m) calcium phosphate                                                                           n) calcium silicate                                          o) aluminum oxide                                                                              p) silicon nitride                                           q) boron carbide r) silicon carbide                                           s) diatomaceous earth                                                         ______________________________________                                    

Because of the ability to shape synthetic fibers such as nylon or acetalresin, these materials are two of the preferred additive materials.Furthermore, as softer materials, such synthetic fibers tend to be lessof an irritant to the skin, and therefore are less likely to causerashes or other adverse skin reactions typically associated with theharder or abrasive cleansers. Such synthetic fibers are also abundant insupply and easily produced. Strands of these fibers are available inmany diameters, and easily cut to desired lengths for incorporation intothe shaving composition. The optimal synthetic fiber diameter should beon the order of the typical blade edge thickness, or roughly about 50 μmto about 200 μm; however, other diameters may also be utilized. In orderto allow the maximum coverage area for micro-blade support, the aspectratio of the chosen polymeric fiber additives are preferably from about3:1 to about 5:1, that is the fiber length is preferably about 3 to 5times greater than the diameter of the fiber; however, aspect ratiosbelow 3:1 and above 5:1 can also be employed if preferred. As notedabove, an effective amount of insoluble particulate additives is anamount, by weight, which provides physical support for the blade of arazor blade assembly during the shaving process. In most instances, fromabout 0.1% to about 20%, by weight will be adequate, while from about 1%to about 10%, by weight is preferred. However, it is to be understoodthat in some instance an equivalent "effective amount" of insolubleparticulate additives less than 0.1% and greater than 20%, and in thickpastes, solids, and gels even as high as 90% or greater may be used inthe practice of the present invention.

The shaving media of the present invention is easily adapted foremployment with standard or conventional pressurized or aerosoldispensers commonly available for commercial shaving creams and gels, orsolid-stick applicators. Such application methods are described in U.S.Pat. Nos. 5,174,992 by Lindauer, et. al., or 4,145,411 by Mende. Sincethe shaving compositions of the present invention may incorporate asingle solid additive or combination of solid additives, no specialconsiderations for media delivery must be reconciled. The minute size ofthe particles incorporated into the shaving composition allows easypassage from the stable in-situ composition container to the air viatraditional dispensing nozzles which incorporate large openings andtravel diameters, typically on the order of 10 millimeters or more.Standard aerosol propellants may be employed in the delivery of theshaving compositions of the present invention.

As noted above, the present invention encompasses any and all shavingcompositions, whether in solid, gel, cream, liquid or aerosol form(before and/or after application to the skin), incorporating insolubleparticulate additives which provide improved blade glide, improved hairretraction from skin, and reduced skin abrasion, cutting and nickingover irregular surfaces or skin abnormalities.

It is therefore seen that the shaving compositions of the presentinvention are clearly different not only from prior art shavingcompositions, but also clearly different from abrasive facial scrubs,cleaning compounds, and general soaps. Furthermore, the presentinvention is clearly discernable from prior art shaving compositionswhich employ soluble materials in shaving compositions for improvedlubricity. In addition, it is seen that the compositions of the presentinvention which provide shaving compositions in which insolubleparticulate additives, such as organic or inorganic fillers or abrasivematerials, are incorporated. It has been shown that when such shavingcompositions are used with conventional razor blade assemblies they willminimize nicks and cuts, and yet will provide a close shave, and improvepost-shave skin smoothness, and improved cleansing characteristics.

The foregoing exemplary descriptions and the preferred embodiments ofthe present invention have been explained in detail, with varyingmodifications and alternative embodiments being taught. While theinvention has been so shown and described, it should be understood bythose skilled in the art that equivalent changes in form and detail maybe made therein without departing from the true spirit and scope of theinvention, and that the scope of the present invention is to be limitedonly to the claims except as precluded by the prior art. Moreover, theinvention as disclosed herein, may be suitably practiced in the absenceof the specific elements which are disclosed herein.

What is claimed is:
 1. Shaving compositions for use in the personalshaving process with a razor blade assembly, which shaving compositionsprovide physical, microscopic support for the blade of such a razorblade assembly during the personal shaving process which comprise:acomposition selected from the group consisting of wetting agents,cleansing agents, lather producing compositions, and emollients, andmixtures thereof; and further comprising at least one solid, insolubleparticulate additive in a well dispersed suspension throughout saidshaving composition, said solid additives present in an effective amountto produce physical support for the blade of a razor blade assemblyduring the personal shaving process.
 2. The compositions according toclaim 1 wherein said solid, insoluble particulate additives are selectedfrom the group consisting of organic polymers particles and inorganicparticles.
 3. The compositions according to claim 2 wherein said solid,insoluble particulate additives are in a size range of from about 0.1 μmto about 1,000 μm.
 4. The compositions according to claim 2 wherein saidsolid, insoluble particulate additives are in a size range of from about10 μm to about 500 μm.
 5. The compositions according to claim 2 whereinsaid solid, insoluble particulate additives are in a size range of fromabout 50 μm to about 200 μm.
 6. The compositions according to claim 2wherein said effective amount of said solid, insoluble particulateadditives is from about 0.1% to about 20% by weight.
 7. The compositionsaccording to claim 2 wherein said effective amount of said solid,insoluble particulate additives is from about 1% to about 10% by weight.8. The compositions according to claim 2 wherein said solid, insolubleparticulate additives are selected from the group consisting of acetalresins, aluminum oxide, boron carbide, calcium carbonate, calciumphosphate, calcium silicate, diatomaceous earth, polyamides,polyethylenes, polytetrafluoroethylene, polyporpylene, polyurethane,silica, pumice, quartz, silicon nitride, silicon carbide, titaniumdioxide, and wood, and mixtures thereof.
 9. The compositions accordingto claim 2 wherein said solid, insoluble particulate additives compriseinorganic particles selected from the group consisting of aluminumoxide, boron carbide, calcium carbonate, calcium phosphate, calciumsilicate, diatomaceous earth, silica, pumice, quartz, silicon nitride,silicon carbide, titanium dioxide, and wood, and mixtures thereof. 10.The compositions according to claim 9 wherein said solid, insolubleparticulate additives comprise silica in the size range of from about 50μm to about 200 μm.
 11. The compositions according to claim 2 whereinsaid solid, insoluble particulate additives comprise organic polymerparticles selected from the group consisting of acetal resin,polyamides, polyethylenes, polytetrafluoroethylene, polypropylene, andpolyurethane, and mixtures thereof.
 12. The compositions according toclaim 11 wherein said solid, insoluble particulate additives compriseorganic polymer particles are in the form of polymeric fibers having alength and diameter dimension.
 13. The compositions according to claim12 wherein said solid, insoluble particulate additive fibers have alength in the range of between about three to about five times the fiberdiameter.
 14. The compositions according to claim 13 wherein said solid,insoluble particulate additive fibers have a diameter of between about10 μm and about 500 μm.
 15. The compositions according to claim 14wherein each of said fibers comprise polyamide.
 16. The compositionsaccording to claim 2 wherein said solid, insoluble particulate additivesare in a size range of from about 50 μm to about 200 μm, and whereinsaid effective amount of said solid, insoluble particulate additives isfrom about 0.1% to about 20% by weight.
 17. Shaving compositions for usein the personal shaving process with a razor blade assembly, whichshaving compositions provide physical support for the blade of such arazor blade assembly during the shaving process comprise:a compositionselected from the group consisting of wetting agents, cleansing agents,lather producing compositions, and emollients, and mixtures thereof; andfurther comprising solid, insoluble particulate silica additive in awell dispersed suspension throughout said shaving composition; wherebysaid the solid silica additive produces a physical support for the bladeof a razor blade assembly during the shaving process.
 18. Thecompositions according to claim 17 wherein said solid, insoluble silicaparticulate additive is in a size range of from about 50 μm to about 200μm, and wherein said effective amount of said solid, insolubleparticulate additives is from about 0.1% to about 20% by weight. 19.Shaving compositions for use in the personal shaving process with arazor blade assembly, which shaving compositions provide physicalmicroscopic support for the blade of such a razor blade assembly duringthe personal shaving process, which may comprise one or more of thefollowing:a mixture of at least one wetting agent, at least onecleansing agent, at least one lather producing composition, and at leastone emollient; and further comprising: solid, insoluble particulatepolyamide fiber additive in a well dispersed suspension throughout saidshaving composition; whereby said the solid polyamide fiber additiveproduces a physical support for the blade of a razor blade assemblyduring the shaving process.
 20. The compositions according to claim 19wherein said solid, insoluble particulate polyamide fiber additives havea length in the range of between about three to about five times thefiber diameter.
 21. The compositions according to claim 20 wherein saidsolid, insoluble particulate polyamide fiber additives have a diameterof between about 10 μm and about 500 μm, and wherein said effectiveamount of said solid, insoluble particulate additives is from about 0.1%to about 20% by weight.
 22. Shaving compositions for use in personalshaving with a razor blade assembly, said composition comprisingmaterials selected from the group consisting of wetting agents,cleansing agents, lather producing compositions, and emollients, andmixtures thereof; and further comprising solid, insoluble particulateadditives in an amount effective to provide physical microscopic supportfor the blade of such a razor blade assembly during the personal shavingprocess.